Specifications

UPSAMPUNG
0/A CONVERTOR
PROBLEMS?
Basic problem-solving with a DAC is similar to troubleshooting other electrical or electronic equipment. Always check the most
obvious possible causes first, such
as the following examples:
Problem
No power I display
Excessive hum from system
speakers
UPSAMPLING .... green
LED will
not light
No audio output, or too low level
output
Dropouts
in sound
No audio output from USB input
Not detected when connected to
USB
Dropouts in sound (USB input)
M1 DAC issue 5
Probable Cause
Power plug
is not inserted into socket correctly
Audio connector plug not fully pushed
in
Cable Fault
Unsuitable Cable
(e.g. cable grounds not connected)
No connection to that input
Incorrect input selected
Wrong data type sent to DAC
Incorrect or missing connections
USB Driver not selected (PC or MAC)
Digital input lead not properly connected
Faulty digital input lead
Faulty optical lead
USB Cable not connected
USB Driver not selected (PC or MAC)
USB Cable faulty
USB not working/enabled on computer
Correct
USB drivers not installed
(can happen particularly with factory- preinstalled
Windows operating systems)
Shared USB port with another device
Computer busy with another application
Computer low
on resources
MUSICAL FIDELITY
Remedy
Plug
in securely into unit's IEC
socket.
Insert plug securely
Check cable
is connected at both
ends.
N.B. some esoteric cables have
internal wiring intentionally
disconnected/modified. For best
results
on all inputs analogue AND
digital, please use good quality
screened coax; signal and screen
directly connected both ends.
Check connection and cable.
Select correct input
Check source digital output
is set for
"16 bit stereo PCM" or similar. This
particularly applies to some TVs,
most
DVD players, and other home
theatre type devices that may give a
MULTICHANNEL digital output.
Refer to the source's manual for
further information.
Check connections
and make sure
they are secure.
See P.8 PC
users or MAC users
section
Check input lead
is fully secured
Change lead. Please use a good
quality straight-through signal-and-
ground phono to phono lead.
Optical lead
breakage. This can
occur if the optical lead is bent into a
radius too small. Avoid tight corners
in routing optical leads.
Check connections and make sure
they are secure.
See P.8 PC
users or Mac users
section
Check
and replace cable
Check USB port functions with
another device.
Please check with the computer
manufacturer. Enquire about USB
driver or update.
Avoid sharing the USB port with
other devices, if possible.
At times
an application (program)
may intervene, sometimes invisibly
e.g. a virus scanner. When this
happens, computer resources are
temporarily used up, and playback
may suffer. This
is not a fault. Try
running fewer applications if
possible.
Page 9 of 11